** Hong Kong shares of new energy vehicle maker BYD Co Ltd...

** Hong Kong shares of new energy vehicle maker BYD Co Ltd 1211.HK jump 7.4% to HK$273.20, the biggest daily percentage gain since Aug. 4

** Stock hits the highest since Aug. 24; the biggest percentage gainer on Hang Seng Index .HSI , Hang Seng Commerce & Industry Index .HSNC and Hang Seng China Enterprises Index .HSCE

** Guangdong, China-based company said it sold 68,531 vehicles in August, up 86.3% from the same period a year ago, of which sales of new energy vehicle soared 301.8% year-on-year to 61,409 vehicles

** Shenzhen-listed shares 002594.SZ rise 7.3% to 272.56 yuan, the biggest daily percentage gain since Aug. 4

** Citi reiterates "buy" rating on the stock and lifts TP of the Hong Kong shares to HK$536 from HK$410, and its Shenzhen stock to 461 yuan from 352 yuan, to factor in new shipments for vehicle and battery, and margin assumptions

** Daiwa maintains "buy" rating on BYD on expecting its sales volume to ramp up further in coming months led by the capacity expansion of its battery

** The Hong Kong Hang Seng Commerce & Industry Index .HSNC rises 0.7%, and the Hang Seng Composite Index .HSCI gains 0.6%

** The Hang Seng China Enterprises Index .HSCE climbs 0.4%and the benchmark index .HSI is up 0.5%